[OMPI users] mpirun hangs

2009-01-03 Thread Maciej Kazulak
Hi, I have a weird problem. After a fresh install mpirun refuses to work: box% ./hello Process 0 on box out of 1 box% mpirun -np 1 ./hello # hangs here, no output, nothing at all; on another terminal: box% ps axl | egrep 'mpirun|orted' 0 1000 24162 7687 20 0 86704 2744 - Sl+ pts/2

[OMPI users] single data/ mutilple processes

2009-01-03 Thread Jim Kress
I need to use openMPI in a mode where the input and output data reside on one node of my cluster while all the other nodes are just used for computation and send data to/from the head node. All I can find in the documentation are cases showing how to use openMPI for cases where input and output da

Re: [OMPI users] single data/ mutilple processes

2009-01-03 Thread jody
Hi Jim If all of your workers can mount a directory on your head node, all can access the data there. Jody On Sat, Jan 3, 2009 at 4:13 PM, Jim Kress wrote: > I need to use openMPI in a mode where the input and output data reside > on one node of my cluster while all the other nodes are just use

Re: [OMPI users] single data/ mutilple processes

2009-01-03 Thread Jim Kress
Hi Jody, I did not explain my problem very well. I have an application called mdrun. It was compiled and linked using openMPI. I want to run mdrun on 8 nodes of my cluster in parallel. Just me. Not multiple users. So I want to launch the openMPI version of mdrun so that it only uses the inp

Re: [OMPI users] single data/ mutilple processes

2009-01-03 Thread Jim Kress
Never mind. I figured it out for myself. Jim On Sat, 2009-01-03 at 13:51 -0500, Jim Kress wrote: > Hi Jody, > > I did not explain my problem very well. > > I have an application called mdrun. It was compiled and linked using > openMPI. I want to run mdrun on 8 nodes of my cluster in parall